git.sesse.net Git - vlc/blob - modules/access/dvdread.c

   1 /*****************************************************************************
   2  * dvdread.c : DvdRead input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_input.h>
  36 #include <vlc_access.h>
  37 #include <vlc_charset.h>
  38 #include <vlc_interface.h>
  39 #include <vlc_dialog.h>
  40
  41 #include <vlc_iso_lang.h>
  42
  43 #include "../demux/ps.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #   include <unistd.h>
  47 #endif
  48
  49 #include <sys/types.h>
  50
  51 #include <dvdread/dvd_reader.h>
  52 #include <dvdread/ifo_types.h>
  53 #include <dvdread/ifo_read.h>
  54 #include <dvdread/nav_read.h>
  55 #include <dvdread/nav_print.h>
  56
  57 #include <assert.h>
  58
  59 /*****************************************************************************
  60  * Module descriptor
  61  *****************************************************************************/
  62 #define ANGLE_TEXT N_("DVD angle")
  63 #define ANGLE_LONGTEXT N_( \
  64     "Default DVD angle." )
  65
  66 #define CACHING_TEXT N_("Caching value in ms")
  67 #define CACHING_LONGTEXT N_( \
  68     "Caching value for DVDs. " \
  69     "This value should be set in milliseconds." )
  70
  71 static int  Open ( vlc_object_t * );
  72 static void Close( vlc_object_t * );
  73
  74 vlc_module_begin ()
  75     set_shortname( N_("DVD without menus") )
  76     set_description( N_("DVDRead Input (no menu support)") )
  77     set_category( CAT_INPUT )
  78     set_subcategory( SUBCAT_INPUT_ACCESS )
  79     add_integer( "dvdread-angle", 1, NULL, ANGLE_TEXT,
  80         ANGLE_LONGTEXT, false )
  81     add_integer( "dvdread-caching", DEFAULT_PTS_DELAY / 1000, NULL,
  82         CACHING_TEXT, CACHING_LONGTEXT, true )
  83     add_obsolete_string( "dvdread-css-method" ) /* obsolete since 1.1.0 */
  84     set_capability( "access_demux", 0 )
  85     add_shortcut( "dvd", "dvdread", "dvdsimple" )
  86     set_callbacks( Open, Close )
  87 vlc_module_end ()
  88
  89 /* how many blocks DVDRead will read in each loop */
  90 #define DVD_BLOCK_READ_ONCE 4
  91
  92 /*****************************************************************************
  93  * Local prototypes
  94  *****************************************************************************/
  95
  96 struct demux_sys_t
  97 {
  98     /* DVDRead state */
  99     dvd_reader_t *p_dvdread;
 100     dvd_file_t   *p_title;
 101
 102     ifo_handle_t *p_vmg_file;
 103     ifo_handle_t *p_vts_file;
 104
 105     int i_title;
 106     int i_chapter, i_chapters;
 107     int i_angle, i_angles;
 108
 109     tt_srpt_t    *p_tt_srpt;
 110     pgc_t        *p_cur_pgc;
 111     dsi_t        dsi_pack;
 112     int          i_ttn;
 113
 114     int i_pack_len;
 115     int i_cur_block;
 116     int i_next_vobu;
 117
 118     int i_mux_rate;
 119
 120     /* Current title start/end blocks */
 121     int i_title_start_block;
 122     int i_title_end_block;
 123     int i_title_blocks;
 124     int i_title_offset;
 125     mtime_t i_title_cur_time;
 126
 127     int i_title_start_cell;
 128     int i_title_end_cell;
 129     int i_cur_cell;
 130     int i_next_cell;
 131     mtime_t i_cell_cur_time;
 132     mtime_t i_cell_duration;
 133
 134     /* Track */
 135     ps_track_t    tk[PS_TK_COUNT];
 136
 137     int           i_titles;
 138     input_title_t **titles;
 139
 140     /* Video */
 141     int i_sar_num;
 142     int i_sar_den;
 143
 144     /* SPU */
 145     uint32_t clut[16];
 146 };
 147
 148 static int Control   ( demux_t *, int, va_list );
 149 static int Demux     ( demux_t * );
 150 static int DemuxBlock( demux_t *, uint8_t *, int );
 151
 152 static void DemuxTitles( demux_t *, int * );
 153 static void ESNew( demux_t *, int, int );
 154
 155 static int  DvdReadSetArea  ( demux_t *, int, int, int );
 156 static void DvdReadSeek     ( demux_t *, int );
 157 static void DvdReadHandleDSI( demux_t *, uint8_t * );
 158 static void DvdReadFindCell ( demux_t * );
 159
 160 /*****************************************************************************
 161  * Open:
 162  *****************************************************************************/
 163 static int Open( vlc_object_t *p_this )
 164 {
 165     demux_t      *p_demux = (demux_t*)p_this;
 166     demux_sys_t  *p_sys;
 167     char         *psz_name;
 168     dvd_reader_t *p_dvdread;
 169     ifo_handle_t *p_vmg_file;
 170
 171     if( !p_demux->psz_file || !*p_demux->psz_file )
 172     {
 173         /* Only when selected */
 174         if( !p_demux->psz_access || !*p_demux->psz_access )
 175             return VLC_EGENERIC;
 176
 177         psz_name = var_CreateGetString( p_this, "dvd" );
 178         if( !psz_name )
 179         {
 180             psz_name = strdup("");
 181         }
 182     }
 183     else
 184         psz_name = ToLocaleDup( p_demux->psz_file );
 185
 186 #ifdef WIN32
 187     if( psz_name[0] && psz_name[1] == ':' &&
 188         psz_name[2] == '\\' && psz_name[3] == '\0' ) psz_name[2] = '\0';
 189 #endif
 190
 191     /* Open dvdread */
 192     if( !(p_dvdread = DVDOpen( psz_name )) )
 193     {
 194         msg_Err( p_demux, "DVDRead cannot open source: %s", psz_name );
 195         dialog_Fatal( p_demux, _("Playback failure"),
 196                         _("DVDRead could not open the disc \"%s\"."), psz_name );
 197         free( psz_name );
 198         return VLC_EGENERIC;
 199     }
 200     free( psz_name );
 201
 202     /* Ifo allocation & initialisation */
 203     if( !( p_vmg_file = ifoOpen( p_dvdread, 0 ) ) )
 204     {
 205         msg_Warn( p_demux, "cannot open VMG info" );
 206         return VLC_EGENERIC;
 207     }
 208     msg_Dbg( p_demux, "VMG opened" );
 209
 210     /* Fill p_demux field */
 211     DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
 212
 213     ps_track_init( p_sys->tk );
 214     p_sys->i_sar_num = 0;
 215     p_sys->i_sar_den = 0;
 216     p_sys->i_title_cur_time = (mtime_t) 0;
 217     p_sys->i_cell_cur_time = (mtime_t) 0;
 218     p_sys->i_cell_duration = (mtime_t) 0;
 219
 220     p_sys->p_dvdread = p_dvdread;
 221     p_sys->p_vmg_file = p_vmg_file;
 222     p_sys->p_title = NULL;
 223     p_sys->p_vts_file = NULL;
 224
 225     p_sys->i_title = p_sys->i_chapter = -1;
 226     p_sys->i_mux_rate = 0;
 227
 228     p_sys->i_angle = var_CreateGetInteger( p_demux, "dvdread-angle" );
 229     if( p_sys->i_angle <= 0 ) p_sys->i_angle = 1;
 230
 231     DemuxTitles( p_demux, &p_sys->i_angle );
 232     if( DvdReadSetArea( p_demux, 0, 0, p_sys->i_angle ) != VLC_SUCCESS )
 233     {
 234         Close( p_this );
 235         msg_Err( p_demux, "DvdReadSetArea(0,0,%i) failed (can't decrypt DVD?)",
 236                  p_sys->i_angle );
 237         return VLC_EGENERIC;
 238     }
 239
 240     /* Update default_pts to a suitable value for dvdread access */
 241     var_Create( p_demux, "dvdread-caching",
 242                 VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 243
 244     return VLC_SUCCESS;
 245 }
 246
 247 /*****************************************************************************
 248  * Close:
 249  *****************************************************************************/
 250 static void Close( vlc_object_t *p_this )
 251 {
 252     demux_t     *p_demux = (demux_t*)p_this;
 253     demux_sys_t *p_sys = p_demux->p_sys;
 254     int i;
 255
 256     for( i = 0; i < PS_TK_COUNT; i++ )
 257     {
 258         ps_track_t *tk = &p_sys->tk[i];
 259         if( tk->b_seen )
 260         {
 261             es_format_Clean( &tk->fmt );
 262             if( tk->es ) es_out_Del( p_demux->out, tk->es );
 263         }
 264     }
 265
 266     /* Free the array of titles */
 267     for( int i = 0; i < p_sys->i_titles; i++ )
 268         vlc_input_title_Delete( p_sys->titles[i] );
 269     TAB_CLEAN( p_sys->i_titles, p_sys->titles );
 270
 271     /* Close libdvdread */
 272     if( p_sys->p_title ) DVDCloseFile( p_sys->p_title );
 273     if( p_sys->p_vts_file ) ifoClose( p_sys->p_vts_file );
 274     if( p_sys->p_vmg_file ) ifoClose( p_sys->p_vmg_file );
 275     DVDClose( p_sys->p_dvdread );
 276
 277     free( p_sys );
 278 }
 279
 280 static int64_t dvdtime_to_time( dvd_time_t *dtime, uint8_t still_time )
 281 {
 282 /* Macro to convert Binary Coded Decimal to Decimal */
 283 #define BCD2D(__x__) (((__x__ & 0xf0) >> 4) * 10 + (__x__ & 0x0f))
 284
 285     double f_fps, f_ms;
 286     int64_t i_micro_second = 0;
 287
 288     if (still_time == 0 || still_time == 0xFF)
 289     {
 290         i_micro_second += (int64_t)(BCD2D(dtime->hour)) * 60 * 60 * 1000000;
 291         i_micro_second += (int64_t)(BCD2D(dtime->minute)) * 60 * 1000000;
 292         i_micro_second += (int64_t)(BCD2D(dtime->second)) * 1000000;
 293
 294         switch((dtime->frame_u & 0xc0) >> 6)
 295         {
 296         case 1:
 297             f_fps = 25.0;
 298             break;
 299         case 3:
 300             f_fps = 29.97;
 301             break;
 302         default:
 303             f_fps = 2500.0;
 304             break;
 305         }
 306         f_ms = BCD2D(dtime->frame_u&0x3f) * 1000.0 / f_fps;
 307         i_micro_second += (int64_t)(f_ms * 1000.0);
 308     }
 309     else
 310     {
 311         i_micro_second = still_time;
 312         i_micro_second = (int64_t)((double)i_micro_second * 1000000.0);
 313     }
 314
 315     return i_micro_second;
 316 }
 317
 318 /*****************************************************************************
 319  * Control:
 320  *****************************************************************************/
 321 static int Control( demux_t *p_demux, int i_query, va_list args )
 322 {
 323     demux_sys_t *p_sys = p_demux->p_sys;
 324     double f, *pf;
 325     bool *pb;
 326     int64_t *pi64;
 327     input_title_t ***ppp_title;
 328     int *pi_int;
 329     int i;
 330
 331     switch( i_query )
 332     {
 333         case DEMUX_GET_POSITION:
 334         {
 335             pf = (double*) va_arg( args, double* );
 336
 337             if( p_sys->i_title_blocks > 0 )
 338                 *pf = (double)p_sys->i_title_offset / p_sys->i_title_blocks;
 339             else
 340                 *pf = 0.0;
 341
 342             return VLC_SUCCESS;
 343         }
 344         case DEMUX_SET_POSITION:
 345         {
 346             f = (double)va_arg( args, double );
 347
 348             DvdReadSeek( p_demux, f * p_sys->i_title_blocks );
 349
 350             return VLC_SUCCESS;
 351         }
 352         case DEMUX_GET_TIME:
 353             pi64 = (int64_t*)va_arg( args, int64_t * );
 354             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 355             {
 356                 *pi64 = (int64_t) dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 ) /
 357                         p_sys->i_title_blocks * p_sys->i_title_offset;
 358                 return VLC_SUCCESS;
 359             }
 360             *pi64 = 0;
 361             return VLC_EGENERIC;
 362
 363         case DEMUX_GET_LENGTH:
 364             pi64 = (int64_t*)va_arg( args, int64_t * );
 365             if( p_demux->info.i_title >= 0 && p_demux->info.i_title < p_sys->i_titles )
 366             {
 367                 *pi64 = (int64_t)dvdtime_to_time( &p_sys->p_cur_pgc->playback_time, 0 );
 368                 return VLC_SUCCESS;
 369             }
 370             *pi64 = 0;
 371             return VLC_EGENERIC;
 372
 373         /* Special for access_demux */
 374         case DEMUX_CAN_PAUSE:
 375         case DEMUX_CAN_SEEK:
 376         case DEMUX_CAN_CONTROL_PACE:
 377             /* TODO */
 378             pb = (bool*)va_arg( args, bool * );
 379             *pb = true;
 380             return VLC_SUCCESS;
 381
 382         case DEMUX_SET_PAUSE_STATE:
 383             return VLC_SUCCESS;
 384
 385         case DEMUX_GET_TITLE_INFO:
 386             ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
 387             pi_int    = (int*)va_arg( args, int* );
 388             *((int*)va_arg( args, int* )) = 1; /* Title offset */
 389             *((int*)va_arg( args, int* )) = 1; /* Chapter offset */
 390
 391             /* Duplicate title infos */
 392             *pi_int = p_sys->i_titles;
 393             *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
 394             for( i = 0; i < p_sys->i_titles; i++ )
 395             {
 396                 (*ppp_title)[i] = vlc_input_title_Duplicate(p_sys->titles[i]);
 397             }
 398             return VLC_SUCCESS;
 399
 400         case DEMUX_SET_TITLE:
 401             i = (int)va_arg( args, int );
 402             if( DvdReadSetArea( p_demux, i, 0, -1 ) != VLC_SUCCESS )
 403             {
 404                 msg_Warn( p_demux, "cannot set title/chapter" );
 405                 return VLC_EGENERIC;
 406             }
 407             p_demux->info.i_update |=
 408                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 409             p_demux->info.i_title = i;
 410             p_demux->info.i_seekpoint = 0;
 411             return VLC_SUCCESS;
 412
 413         case DEMUX_SET_SEEKPOINT:
 414             i = (int)va_arg( args, int );
 415             if( DvdReadSetArea( p_demux, -1, i, -1 ) != VLC_SUCCESS )
 416             {
 417                 msg_Warn( p_demux, "cannot set title/chapter" );
 418                 return VLC_EGENERIC;
 419             }
 420             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
 421             p_demux->info.i_seekpoint = i;
 422             return VLC_SUCCESS;
 423
 424         case DEMUX_GET_PTS_DELAY:
 425             pi64 = (int64_t*)va_arg( args, int64_t * );
 426             *pi64 = var_GetInteger( p_demux, "dvdread-caching" )*1000;
 427             return VLC_SUCCESS;
 428
 429         /* TODO implement others */
 430         default:
 431             return VLC_EGENERIC;
 432     }
 433 }
 434
 435 /*****************************************************************************
 436  * Demux:
 437  *****************************************************************************/
 438 static int Demux( demux_t *p_demux )
 439 {
 440     demux_sys_t *p_sys = p_demux->p_sys;
 441
 442     uint8_t p_buffer[DVD_VIDEO_LB_LEN * DVD_BLOCK_READ_ONCE];
 443     int i_blocks_once, i_read;
 444     int i;
 445
 446     /*
 447      * Playback by cell in this pgc, starting at the cell for our chapter.
 448      */
 449
 450     /*
 451      * Check end of pack, and select the following one
 452      */
 453     if( !p_sys->i_pack_len )
 454     {
 455         /* Read NAV packet */
 456         if( DVDReadBlocks( p_sys->p_title, p_sys->i_next_vobu,
 457                            1, p_buffer ) != 1 )
 458         {
 459             msg_Err( p_demux, "read failed for block %d", p_sys->i_next_vobu );
 460             dialog_Fatal( p_demux, _("Playback failure"),
 461                           _("DVDRead could not read block %d."),
 462                           p_sys->i_next_vobu );
 463             return -1;
 464         }
 465
 466         /* Basic check to be sure we don't have a empty title
 467          * go to next title if so */
 468         //assert( p_buffer[41] == 0xbf && p_buffer[1027] == 0xbf );
 469
 470         /* Parse the contained dsi packet */
 471         DvdReadHandleDSI( p_demux, p_buffer );
 472
 473         /* End of title */
 474         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 475         {
 476             if( p_sys->i_title + 1 >= p_sys->i_titles )
 477             {
 478                 return 0; /* EOF */
 479             }
 480
 481             DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 482         }
 483
 484         if( p_sys->i_pack_len >= 1024 )
 485         {
 486             msg_Err( p_demux, "i_pack_len >= 1024 (%i). "
 487                      "This shouldn't happen!", p_sys->i_pack_len );
 488             return 0; /* EOF */
 489         }
 490
 491         /* FIXME: Ugly kludge: we send the pack block to the input for it
 492          * sometimes has a zero scr and restart the sync */
 493         p_sys->i_cur_block++;
 494         p_sys->i_title_offset++;
 495
 496         DemuxBlock( p_demux, p_buffer, DVD_VIDEO_LB_LEN );
 497     }
 498
 499     if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells )
 500     {
 501         if( p_sys->i_title + 1 >= p_sys->i_titles )
 502         {
 503             return 0; /* EOF */
 504         }
 505
 506         DvdReadSetArea( p_demux, p_sys->i_title + 1, 0, -1 );
 507     }
 508
 509     /*
 510      * Read actual data
 511      */
 512     i_blocks_once = __MIN( p_sys->i_pack_len, DVD_BLOCK_READ_ONCE );
 513     p_sys->i_pack_len -= i_blocks_once;
 514
 515     /* Reads from DVD */
 516     i_read = DVDReadBlocks( p_sys->p_title, p_sys->i_cur_block,
 517                             i_blocks_once, p_buffer );
 518     if( i_read != i_blocks_once )
 519     {
 520         msg_Err( p_demux, "read failed for %d/%d blocks at 0x%02x",
 521                  i_read, i_blocks_once, p_sys->i_cur_block );
 522         dialog_Fatal( p_demux, _("Playback failure"),
 523                         _("DVDRead could not read %d/%d blocks at 0x%02x."),
 524                         i_read, i_blocks_once, p_sys->i_cur_block );
 525         return -1;
 526     }
 527
 528     p_sys->i_cur_block += i_read;
 529     p_sys->i_title_offset += i_read;
 530
 531 #if 0
 532     msg_Dbg( p_demux, "i_blocks: %d len: %d current: 0x%02x",
 533              i_read, p_sys->i_pack_len, p_sys->i_cur_block );
 534 #endif
 535
 536     for( i = 0; i < i_read; i++ )
 537     {
 538         DemuxBlock( p_demux, p_buffer + i * DVD_VIDEO_LB_LEN,
 539                     DVD_VIDEO_LB_LEN );
 540     }
 541
 542 #undef p_pgc
 543
 544     return 1;
 545 }
 546
 547 /*****************************************************************************
 548  * DemuxBlock: demux a given block
 549  *****************************************************************************/
 550 static int DemuxBlock( demux_t *p_demux, uint8_t *pkt, int i_pkt )
 551 {
 552     demux_sys_t *p_sys = p_demux->p_sys;
 553     uint8_t     *p = pkt;
 554
 555     while( p && p < &pkt[i_pkt] )
 556     {
 557         block_t *p_pkt;
 558         int i_size = &pkt[i_pkt] - p;
 559
 560         if( i_size < 6 )
 561             break;
 562
 563         i_size = ps_pkt_size( p, i_size );
 564         if( i_size <= 0 )
 565         {
 566             break;
 567         }
 568
 569         /* Create a block */
 570         p_pkt = block_New( p_demux, i_size );
 571         memcpy( p_pkt->p_buffer, p, i_size);
 572
 573         /* Parse it and send it */
 574         switch( 0x100 | p[3] )
 575         {
 576         case 0x1b9:
 577         case 0x1bb:
 578         case 0x1bc:
 579
 580 #ifdef DVDREAD_DEBUG
 581             if( p[3] == 0xbc )
 582             {
 583                 msg_Warn( p_demux, "received a PSM packet" );
 584             }
 585             else if( p[3] == 0xbb )
 586             {
 587                 msg_Warn( p_demux, "received a SYSTEM packet" );
 588             }
 589 #endif
 590             block_Release( p_pkt );
 591             break;
 592
 593         case 0x1ba:
 594         {
 595             int64_t i_scr;
 596             int i_mux_rate;
 597             if( !ps_pkt_parse_pack( p_pkt, &i_scr, &i_mux_rate ) )
 598             {
 599                 es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_scr );
 600                 if( i_mux_rate > 0 ) p_sys->i_mux_rate = i_mux_rate;
 601             }
 602             block_Release( p_pkt );
 603             break;
 604         }
 605         default:
 606         {
 607             int i_id = ps_pkt_id( p_pkt );
 608             if( i_id >= 0xc0 )
 609             {
 610                 ps_track_t *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 611
 612                 if( !tk->b_seen )
 613                 {
 614                     ESNew( p_demux, i_id, 0 );
 615                 }
 616                 if( tk->b_seen && tk->es &&
 617                     !ps_pkt_parse_pes( p_pkt, tk->i_skip ) )
 618                 {
 619                     es_out_Send( p_demux->out, tk->es, p_pkt );
 620                 }
 621                 else
 622                 {
 623                     block_Release( p_pkt );
 624                 }
 625             }
 626             else
 627             {
 628                 block_Release( p_pkt );
 629             }
 630             break;
 631         }
 632         }
 633
 634         p += i_size;
 635     }
 636
 637     return VLC_SUCCESS;
 638 }
 639
 640 /*****************************************************************************
 641  * ESNew: register a new elementary stream
 642  *****************************************************************************/
 643 static void ESNew( demux_t *p_demux, int i_id, int i_lang )
 644 {
 645     demux_sys_t *p_sys = p_demux->p_sys;
 646     ps_track_t  *tk = &p_sys->tk[PS_ID_TO_TK(i_id)];
 647     char psz_language[3];
 648
 649     if( tk->b_seen ) return;
 650
 651     if( ps_track_fill( tk, 0, i_id ) )
 652     {
 653         msg_Warn( p_demux, "unknown codec for id=0x%x", i_id );
 654         return;
 655     }
 656
 657     psz_language[0] = psz_language[1] = psz_language[2] = 0;
 658     if( i_lang && i_lang != 0xffff )
 659     {
 660         psz_language[0] = (i_lang >> 8)&0xff;
 661         psz_language[1] = (i_lang     )&0xff;
 662     }
 663
 664     /* Add a new ES */
 665     if( tk->fmt.i_cat == VIDEO_ES )
 666     {
 667         tk->fmt.video.i_sar_num = p_sys->i_sar_num;
 668         tk->fmt.video.i_sar_den = p_sys->i_sar_den;
 669     }
 670     else if( tk->fmt.i_cat == AUDIO_ES )
 671     {
 672         int i_audio = -1;
 673         /* find the audio number PLEASE find another way */
 674         if( (i_id&0xbdf8) == 0xbd88 )       /* dts */
 675         {
 676             i_audio = i_id&0x07;
 677         }
 678         else if( (i_id&0xbdf0) == 0xbd80 )  /* a52 */
 679         {
 680             i_audio = i_id&0xf;
 681         }
 682         else if( (i_id&0xbdf0) == 0xbda0 )  /* lpcm */
 683         {
 684             i_audio = i_id&0x1f;
 685         }
 686         else if( ( i_id&0xe0 ) == 0xc0 )    /* mpga */
 687         {
 688             i_audio = i_id&0x1f;
 689         }
 690
 691         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 692     }
 693     else if( tk->fmt.i_cat == SPU_ES )
 694     {
 695         /* Palette */
 696         tk->fmt.subs.spu.palette[0] = 0xBeef;
 697         memcpy( &tk->fmt.subs.spu.palette[1], p_sys->clut,
 698                 16 * sizeof( uint32_t ) );
 699
 700         if( psz_language[0] ) tk->fmt.psz_language = strdup( psz_language );
 701     }
 702
 703     tk->es = es_out_Add( p_demux->out, &tk->fmt );
 704     tk->b_seen = true;
 705 }
 706
 707 /*****************************************************************************
 708  * DvdReadSetArea: initialize input data for title x, chapter y.
 709  * It should be called for each user navigation request.
 710  *****************************************************************************
 711  * Take care that i_title and i_chapter start from 0.
 712  *****************************************************************************/
 713 static int DvdReadSetArea( demux_t *p_demux, int i_title, int i_chapter,
 714                            int i_angle )
 715 {
 716     VLC_UNUSED( i_angle );
 717
 718     demux_sys_t *p_sys = p_demux->p_sys;
 719     int pgc_id = 0, pgn = 0;
 720     int i;
 721
 722 #define p_pgc p_sys->p_cur_pgc
 723 #define p_vmg p_sys->p_vmg_file
 724 #define p_vts p_sys->p_vts_file
 725
 726     if( i_title >= 0 && i_title < p_sys->i_titles &&
 727         i_title != p_sys->i_title )
 728     {
 729         int i_start_cell, i_end_cell;
 730
 731         if( p_sys->p_title != NULL ) DVDCloseFile( p_sys->p_title );
 732         if( p_vts != NULL ) ifoClose( p_vts );
 733         p_sys->i_title = i_title;
 734
 735         /*
 736          *  We have to load all title information
 737          */
 738         msg_Dbg( p_demux, "open VTS %d, for title %d",
 739                  p_vmg->tt_srpt->title[i_title].title_set_nr, i_title + 1 );
 740
 741         /* Ifo vts */
 742         if( !( p_vts = ifoOpen( p_sys->p_dvdread,
 743                p_vmg->tt_srpt->title[i_title].title_set_nr ) ) )
 744         {
 745             msg_Err( p_demux, "fatal error in vts ifo" );
 746             return VLC_EGENERIC;
 747         }
 748
 749         /* Title position inside the selected vts */
 750         p_sys->i_ttn = p_vmg->tt_srpt->title[i_title].vts_ttn;
 751
 752         /* Find title start/end */
 753         pgc_id = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgcn;
 754         pgn = p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].ptt[0].pgn;
 755         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 756
 757         p_sys->i_title_start_cell =
 758             i_start_cell = p_pgc->program_map[pgn - 1] - 1;
 759         p_sys->i_title_start_block =
 760             p_pgc->cell_playback[i_start_cell].first_sector;
 761
 762         p_sys->i_title_end_cell =
 763             i_end_cell = p_pgc->nr_of_cells - 1;
 764         p_sys->i_title_end_block =
 765             p_pgc->cell_playback[i_end_cell].last_sector;
 766
 767         p_sys->i_title_offset = 0;
 768
 769         p_sys->i_title_blocks = 0;
 770         for( i = i_start_cell; i <= i_end_cell; i++ )
 771         {
 772             p_sys->i_title_blocks += p_pgc->cell_playback[i].last_sector -
 773                 p_pgc->cell_playback[i].first_sector + 1;
 774         }
 775
 776         msg_Dbg( p_demux, "title %d vts_title %d pgc %d pgn %d "
 777                  "start %d end %d blocks: %d",
 778                  i_title + 1, p_sys->i_ttn, pgc_id, pgn,
 779                  p_sys->i_title_start_block, p_sys->i_title_end_block,
 780                  p_sys->i_title_blocks );
 781
 782         /*
 783          * Set properties for current chapter
 784          */
 785         p_sys->i_chapter = 0;
 786         p_sys->i_chapters =
 787             p_vts->vts_ptt_srpt->title[p_sys->i_ttn - 1].nr_of_ptts;
 788
 789         pgc_id = p_vts->vts_ptt_srpt->title[
 790                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgcn;
 791         pgn = p_vts->vts_ptt_srpt->title[
 792                     p_sys->i_ttn - 1].ptt[p_sys->i_chapter].pgn;
 793
 794         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
 795         p_sys->i_pack_len = 0;
 796         p_sys->i_next_cell =
 797             p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
 798         DvdReadFindCell( p_demux );
 799
 800         p_sys->i_next_vobu = p_sys->i_cur_block =
 801             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
 802
 803         /*
 804          * Angle management
 805          */
 806         p_sys->i_angles = p_vmg->tt_srpt->title[i_title].nr_of_angles;
 807         if( p_sys->i_angle > p_sys->i_angles ) p_sys->i_angle = 1;
 808
 809         /*
 810          * We've got enough info, time to open the title set data.
 811          */
 812         if( !( p_sys->p_title = DVDOpenFile( p_sys->p_dvdread,
 813             p_vmg->tt_srpt->title[i_title].title_set_nr,
 814             DVD_READ_TITLE_VOBS ) ) )
 815         {
 816             msg_Err( p_demux, "cannot open title (VTS_%02d_1.VOB)",
 817                      p_vmg->tt_srpt->title[i_title].title_set_nr );
 818             return VLC_EGENERIC;
 819         }
 820
 821         //IfoPrintTitle( p_demux );
 822
 823         /*
 824          * Destroy obsolete ES by reinitializing program 0
 825          * and find all ES in title with ifo data
 826          */
 827         es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 828
 829         for( i = 0; i < PS_TK_COUNT; i++ )
 830         {
 831             ps_track_t *tk = &p_sys->tk[i];
 832             if( tk->b_seen )
 833             {
 834                 es_format_Clean( &tk->fmt );
 835                 if( tk->es ) es_out_Del( p_demux->out, tk->es );
 836             }
 837             tk->b_seen = false;
 838         }
 839
 840         if( p_demux->info.i_title != i_title )
 841         {
 842             p_demux->info.i_update |=
 843                 INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
 844             p_demux->info.i_title = i_title;
 845             p_demux->info.i_seekpoint = 0;
 846         }
 847
 848         /* TODO: re-add angles */
 849
 850
 851         ESNew( p_demux, 0xe0, 0 ); /* Video, FIXME ? */
 852         const video_attr_t *p_attr = &p_vts->vtsi_mat->vts_video_attr;
 853         int i_video_height = p_attr->video_format != 0 ? 576 : 480;
 854         int i_video_width;
 855         switch( p_attr->picture_size )
 856         {
 857         case 0:
 858             i_video_width = 720;
 859             break;
 860         case 1:
 861             i_video_width = 704;
 862             break;
 863         case 2:
 864             i_video_width = 352;
 865             break;
 866         default:
 867         case 3:
 868             i_video_width = 352;
 869             i_video_height /= 2;
 870             break;
 871         }
 872         switch( p_attr->display_aspect_ratio )
 873         {
 874         case 0:
 875             p_sys->i_sar_num = 4 * i_video_height;
 876             p_sys->i_sar_den = 3 * i_video_width;
 877             break;
 878         case 3:
 879             p_sys->i_sar_num = 16 * i_video_height;
 880             p_sys->i_sar_den =  9 * i_video_width;
 881             break;
 882         default:
 883             p_sys->i_sar_num = 0;
 884             p_sys->i_sar_den = 0;
 885             break;
 886         }
 887
 888 #define audio_control \
 889     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->audio_control[i-1]
 890
 891         /* Audio ES, in the order they appear in the .ifo */
 892         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_audio_streams; i++ )
 893         {
 894             int i_position = 0;
 895             uint16_t i_id;
 896
 897             //IfoPrintAudio( p_demux, i );
 898
 899             /* Audio channel is active if first byte is 0x80 */
 900             if( audio_control & 0x8000 )
 901             {
 902                 i_position = ( audio_control & 0x7F00 ) >> 8;
 903
 904                 msg_Dbg( p_demux, "audio position  %d", i_position );
 905                 switch( p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format )
 906                 {
 907                 case 0x00: /* A52 */
 908                     i_id = (0x80 + i_position) | 0xbd00;
 909                     break;
 910                 case 0x02:
 911                 case 0x03: /* MPEG audio */
 912                     i_id = 0xc000 + i_position;
 913                     break;
 914                 case 0x04: /* LPCM */
 915                     i_id = (0xa0 + i_position) | 0xbd00;
 916                     break;
 917                 case 0x06: /* DTS */
 918                     i_id = (0x88 + i_position) | 0xbd00;
 919                     break;
 920                 default:
 921                     i_id = 0;
 922                     msg_Err( p_demux, "unknown audio type %.2x",
 923                         p_vts->vtsi_mat->vts_audio_attr[i - 1].audio_format );
 924                 }
 925
 926                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 927                        vts_audio_attr[i - 1].lang_code );
 928             }
 929         }
 930 #undef audio_control
 931
 932 #define spu_palette \
 933     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->palette
 934
 935         memcpy( p_sys->clut, spu_palette, 16 * sizeof( uint32_t ) );
 936
 937 #define spu_control \
 938     p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id-1].pgc->subp_control[i-1]
 939
 940         /* Sub Picture ES */
 941         for( i = 1; i <= p_vts->vtsi_mat->nr_of_vts_subp_streams; i++ )
 942         {
 943             int i_position = 0;
 944             uint16_t i_id;
 945
 946             //IfoPrintSpu( p_sys, i );
 947             msg_Dbg( p_demux, "spu %d 0x%02x", i, spu_control );
 948
 949             if( spu_control & 0x80000000 )
 950             {
 951                 /*  there are several streams for one spu */
 952                 if( p_vts->vtsi_mat->vts_video_attr.display_aspect_ratio )
 953                 {
 954                     /* 16:9 */
 955                     switch( p_vts->vtsi_mat->vts_video_attr.permitted_df )
 956                     {
 957                     case 1: /* letterbox */
 958                         i_position = spu_control & 0xff;
 959                         break;
 960                     case 2: /* pan&scan */
 961                         i_position = ( spu_control >> 8 ) & 0xff;
 962                         break;
 963                     default: /* widescreen */
 964                         i_position = ( spu_control >> 16 ) & 0xff;
 965                         break;
 966                     }
 967                 }
 968                 else
 969                 {
 970                     /* 4:3 */
 971                     i_position = ( spu_control >> 24 ) & 0x7F;
 972                 }
 973
 974                 i_id = (0x20 + i_position) | 0xbd00;
 975
 976                 ESNew( p_demux, i_id, p_sys->p_vts_file->vtsi_mat->
 977                        vts_subp_attr[i - 1].lang_code );
 978             }
 979         }
 980 #undef spu_control
 981
 982     }
 983     else if( i_title != -1 && i_title != p_sys->i_title )
 984
 985     {
 986         return VLC_EGENERIC; /* Couldn't set title */
 987     }
 988
 989     /*
 990      * Chapter selection
 991      */
 992
 993     if( i_chapter >= 0 && i_chapter < p_sys->i_chapters )
 994     {
 995         pgc_id = p_vts->vts_ptt_srpt->title[
 996                      p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
 997         pgn = p_vts->vts_ptt_srpt->title[
 998                   p_sys->i_ttn - 1].ptt[i_chapter].pgn;
 999
1000         p_pgc = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1001
1002         p_sys->i_cur_cell = p_pgc->program_map[pgn - 1] - 1;
1003         p_sys->i_chapter = i_chapter;
1004         DvdReadFindCell( p_demux );
1005
1006         p_sys->i_title_offset = 0;
1007         for( i = p_sys->i_title_start_cell; i < p_sys->i_cur_cell; i++ )
1008         {
1009             p_sys->i_title_offset += p_pgc->cell_playback[i].last_sector -
1010                 p_pgc->cell_playback[i].first_sector + 1;
1011         }
1012
1013         p_sys->i_pack_len = 0;
1014         p_sys->i_next_vobu = p_sys->i_cur_block =
1015             p_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1016
1017         if( p_demux->info.i_seekpoint != i_chapter )
1018         {
1019             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1020             p_demux->info.i_seekpoint = i_chapter;
1021         }
1022     }
1023     else if( i_chapter != -1 )
1024
1025     {
1026         return VLC_EGENERIC; /* Couldn't set chapter */
1027     }
1028
1029 #undef p_pgc
1030 #undef p_vts
1031 #undef p_vmg
1032
1033     return VLC_SUCCESS;
1034 }
1035
1036 /*****************************************************************************
1037  * DvdReadSeek : Goes to a given position on the stream.
1038  *****************************************************************************
1039  * This one is used by the input and translate chronological position from
1040  * input to logical position on the device.
1041  *****************************************************************************/
1042 static void DvdReadSeek( demux_t *p_demux, int i_block_offset )
1043 {
1044     demux_sys_t *p_sys = p_demux->p_sys;
1045     int i_chapter = 0;
1046     int i_cell = 0;
1047     int i_vobu = 0;
1048     int i_sub_cell = 0;
1049     int i_block;
1050
1051 #define p_pgc p_sys->p_cur_pgc
1052 #define p_vts p_sys->p_vts_file
1053
1054     /* Find cell */
1055     i_block = i_block_offset;
1056     for( i_cell = p_sys->i_title_start_cell;
1057          i_cell <= p_sys->i_title_end_cell; i_cell++ )
1058     {
1059         if( i_block < (int)p_pgc->cell_playback[i_cell].last_sector -
1060             (int)p_pgc->cell_playback[i_cell].first_sector + 1 ) break;
1061
1062         i_block -= (p_pgc->cell_playback[i_cell].last_sector -
1063             p_pgc->cell_playback[i_cell].first_sector + 1);
1064     }
1065     if( i_cell > p_sys->i_title_end_cell )
1066     {
1067         msg_Err( p_demux, "couldn't find cell for block %i", i_block_offset );
1068         return;
1069     }
1070     i_block += p_pgc->cell_playback[i_cell].first_sector;
1071     p_sys->i_title_offset = i_block_offset;
1072
1073     /* Find chapter */
1074     for( i_chapter = 0; i_chapter < p_sys->i_chapters; i_chapter++ )
1075     {
1076         int pgc_id, pgn, i_tmp;
1077
1078         pgc_id = p_vts->vts_ptt_srpt->title[
1079                     p_sys->i_ttn - 1].ptt[i_chapter].pgcn;
1080         pgn = p_vts->vts_ptt_srpt->title[
1081                     p_sys->i_ttn - 1].ptt[i_chapter].pgn;
1082
1083         i_tmp = p_vts->vts_pgcit->pgci_srp[pgc_id - 1].pgc->program_map[pgn-1];
1084
1085         if( i_tmp > i_cell ) break;
1086     }
1087
1088     if( i_chapter < p_sys->i_chapters &&
1089         p_demux->info.i_seekpoint != i_chapter )
1090     {
1091         p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1092         p_demux->info.i_seekpoint = i_chapter;
1093     }
1094
1095     /* Find vobu */
1096     while( (int)p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu] <= i_block )
1097     {
1098         i_vobu++;
1099     }
1100
1101     /* Find sub_cell */
1102     while( p_vts->vts_c_adt->cell_adr_table[i_sub_cell].start_sector <
1103            p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu-1] )
1104     {
1105         i_sub_cell++;
1106     }
1107
1108 #if 1
1109     msg_Dbg( p_demux, "cell %d i_sub_cell %d chapter %d vobu %d "
1110              "cell_sector %d vobu_sector %d sub_cell_sector %d",
1111              i_cell, i_sub_cell, i_chapter, i_vobu,
1112              p_sys->p_cur_pgc->cell_playback[i_cell].first_sector,
1113              p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu],
1114              p_vts->vts_c_adt->cell_adr_table[i_sub_cell - 1].start_sector);
1115 #endif
1116
1117     p_sys->i_cur_block = i_block;
1118     p_sys->i_next_vobu = p_vts->vts_vobu_admap->vobu_start_sectors[i_vobu];
1119     p_sys->i_pack_len = p_sys->i_next_vobu - i_block;
1120     p_sys->i_cur_cell = i_cell;
1121     p_sys->i_chapter = i_chapter;
1122     DvdReadFindCell( p_demux );
1123
1124 #undef p_vts
1125 #undef p_pgc
1126
1127     return;
1128 }
1129
1130 /*****************************************************************************
1131  * DvdReadHandleDSI
1132  *****************************************************************************/
1133 static void DvdReadHandleDSI( demux_t *p_demux, uint8_t *p_data )
1134 {
1135     demux_sys_t *p_sys = p_demux->p_sys;
1136
1137     navRead_DSI( &p_sys->dsi_pack, &p_data[DSI_START_BYTE] );
1138
1139     /*
1140      * Determine where we go next.  These values are the ones we mostly
1141      * care about.
1142      */
1143     p_sys->i_cur_block = p_sys->dsi_pack.dsi_gi.nv_pck_lbn;
1144     p_sys->i_pack_len = p_sys->dsi_pack.dsi_gi.vobu_ea;
1145
1146     /*
1147      * Store the timecodes so we can get the current time
1148      */
1149     p_sys->i_title_cur_time = (mtime_t) (p_sys->dsi_pack.dsi_gi.nv_pck_scr / 90 * 1000);
1150     p_sys->i_cell_cur_time = (mtime_t) dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 );
1151
1152     /*
1153      * If we're not at the end of this cell, we can determine the next
1154      * VOBU to display using the VOBU_SRI information section of the
1155      * DSI.  Using this value correctly follows the current angle,
1156      * avoiding the doubled scenes in The Matrix, and makes our life
1157      * really happy.
1158      */
1159
1160     p_sys->i_next_vobu = p_sys->i_cur_block +
1161         ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1162
1163     if( p_sys->dsi_pack.vobu_sri.next_vobu != SRI_END_OF_CELL
1164         && p_sys->i_angle > 1 )
1165     {
1166         switch( ( p_sys->dsi_pack.sml_pbi.category & 0xf000 ) >> 12 )
1167         {
1168         case 0x4:
1169             /* Interleaved unit with no angle */
1170             if( p_sys->dsi_pack.sml_pbi.ilvu_sa != 0 )
1171             {
1172                 p_sys->i_next_vobu = p_sys->i_cur_block +
1173                     p_sys->dsi_pack.sml_pbi.ilvu_sa;
1174                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1175             }
1176             else
1177             {
1178                 p_sys->i_next_vobu = p_sys->i_cur_block +
1179                     p_sys->dsi_pack.dsi_gi.vobu_ea + 1;
1180             }
1181             break;
1182         case 0x5:
1183             /* vobu is end of ilvu */
1184             if( p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address )
1185             {
1186                 p_sys->i_next_vobu = p_sys->i_cur_block +
1187                     p_sys->dsi_pack.sml_agli.data[p_sys->i_angle-1].address;
1188                 p_sys->i_pack_len = p_sys->dsi_pack.sml_pbi.ilvu_ea;
1189
1190                 break;
1191             }
1192         case 0x6:
1193             /* vobu is beginning of ilvu */
1194         case 0x9:
1195             /* next scr is 0 */
1196         case 0xa:
1197             /* entering interleaved section */
1198         case 0x8:
1199             /* non interleaved cells in interleaved section */
1200         default:
1201             p_sys->i_next_vobu = p_sys->i_cur_block +
1202                 ( p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff );
1203             break;
1204         }
1205     }
1206     else if( p_sys->dsi_pack.vobu_sri.next_vobu == SRI_END_OF_CELL )
1207     {
1208         p_sys->i_cur_cell = p_sys->i_next_cell;
1209
1210         /* End of title */
1211         if( p_sys->i_cur_cell >= p_sys->p_cur_pgc->nr_of_cells ) return;
1212
1213         DvdReadFindCell( p_demux );
1214
1215         p_sys->i_next_vobu =
1216             p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].first_sector;
1217
1218         p_sys->i_cell_duration = (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 );
1219     }
1220
1221
1222 #if 0
1223     msg_Dbg( p_demux, "scr %d lbn 0x%02x vobu_ea %d vob_id %d c_id %d c_time %lld",
1224              p_sys->dsi_pack.dsi_gi.nv_pck_scr,
1225              p_sys->dsi_pack.dsi_gi.nv_pck_lbn,
1226              p_sys->dsi_pack.dsi_gi.vobu_ea,
1227              p_sys->dsi_pack.dsi_gi.vobu_vob_idn,
1228              p_sys->dsi_pack.dsi_gi.vobu_c_idn,
1229              dvdtime_to_time( &p_sys->dsi_pack.dsi_gi.c_eltm, 0 ) );
1230
1231     msg_Dbg( p_demux, "cell duration: %lld",
1232              (mtime_t)dvdtime_to_time( &p_sys->p_cur_pgc->cell_playback[p_sys->i_cur_cell].playback_time, 0 ) );
1233
1234     msg_Dbg( p_demux, "cat 0x%02x ilvu_ea %d ilvu_sa %d size %d",
1235              p_sys->dsi_pack.sml_pbi.category,
1236              p_sys->dsi_pack.sml_pbi.ilvu_ea,
1237              p_sys->dsi_pack.sml_pbi.ilvu_sa,
1238              p_sys->dsi_pack.sml_pbi.size );
1239
1240     msg_Dbg( p_demux, "next_vobu %d next_ilvu1 %d next_ilvu2 %d",
1241              p_sys->dsi_pack.vobu_sri.next_vobu & 0x7fffffff,
1242              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle - 1 ].address,
1243              p_sys->dsi_pack.sml_agli.data[ p_sys->i_angle ].address);
1244 #endif
1245 }
1246
1247 /*****************************************************************************
1248  * DvdReadFindCell
1249  *****************************************************************************/
1250 static void DvdReadFindCell( demux_t *p_demux )
1251 {
1252     demux_sys_t *p_sys = p_demux->p_sys;
1253
1254     pgc_t *p_pgc;
1255     int   pgc_id, pgn;
1256     int   i = 0;
1257
1258 #define cell p_sys->p_cur_pgc->cell_playback
1259
1260     if( cell[p_sys->i_cur_cell].block_type == BLOCK_TYPE_ANGLE_BLOCK )
1261     {
1262         p_sys->i_cur_cell += p_sys->i_angle - 1;
1263
1264         while( cell[p_sys->i_cur_cell+i].block_mode != BLOCK_MODE_LAST_CELL )
1265         {
1266             i++;
1267         }
1268         p_sys->i_next_cell = p_sys->i_cur_cell + i + 1;
1269     }
1270     else
1271     {
1272         p_sys->i_next_cell = p_sys->i_cur_cell + 1;
1273     }
1274
1275 #undef cell
1276
1277     if( p_sys->i_chapter + 1 >= p_sys->i_chapters ) return;
1278
1279     pgc_id = p_sys->p_vts_file->vts_ptt_srpt->title[
1280                 p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgcn;
1281     pgn = p_sys->p_vts_file->vts_ptt_srpt->title[
1282               p_sys->i_ttn - 1].ptt[p_sys->i_chapter + 1].pgn;
1283     p_pgc = p_sys->p_vts_file->vts_pgcit->pgci_srp[pgc_id - 1].pgc;
1284
1285     if( p_sys->i_cur_cell >= p_pgc->program_map[pgn - 1] - 1 )
1286     {
1287         p_sys->i_chapter++;
1288
1289         if( p_sys->i_chapter < p_sys->i_chapters &&
1290             p_demux->info.i_seekpoint != p_sys->i_chapter )
1291         {
1292             p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
1293             p_demux->info.i_seekpoint = p_sys->i_chapter;
1294         }
1295     }
1296 }
1297
1298 /*****************************************************************************
1299  * DemuxTitles: get the titles/chapters structure
1300  *****************************************************************************/
1301 static void DemuxTitles( demux_t *p_demux, int *pi_angle )
1302 {
1303     VLC_UNUSED( pi_angle );
1304
1305     demux_sys_t *p_sys = p_demux->p_sys;
1306     input_title_t *t;
1307     seekpoint_t *s;
1308
1309     /* Find out number of titles/chapters */
1310 #define tt_srpt p_sys->p_vmg_file->tt_srpt
1311
1312     int32_t i_titles = tt_srpt->nr_of_srpts;
1313     msg_Dbg( p_demux, "number of titles: %d", i_titles );
1314
1315     for( int i = 0; i < i_titles; i++ )
1316     {
1317         int32_t i_chapters = 0;
1318         int j;
1319
1320         i_chapters = tt_srpt->title[i].nr_of_ptts;
1321         msg_Dbg( p_demux, "title %d has %d chapters", i, i_chapters );
1322
1323         t = vlc_input_title_New();
1324
1325         for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
1326         {
1327             s = vlc_seekpoint_New();
1328             TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
1329         }
1330
1331         TAB_APPEND( p_sys->i_titles, p_sys->titles, t );
1332     }
1333
1334 #undef tt_srpt
1335 }